Explosive-engine.



M. B. MORGAN, EXPLOSIVE ENGINE APPLICATION FILED JULY 28,

Patented Mar. 7, 191i.

2 SHEETS-SHEET 1.

M. B. MORGAN. EXPLOSIVE ENGINE. APPLICATION PILBDJULY 2e. 19o.

Patented Mar. 7, 1911.

2 SHEETS-SHEET 2.

iiisirnngf Me'riinw nivioneirn, or LANSING, MICHIGAN, nssIGNo'n orONE-HALF To oscura 1a.

SPRNGEB, OF DETROIT, MICHIGAN.

nirrrosrvii-ENGINE.

senese,

. and State of Michigan, have invented cerltain new `and usefulImprovements in EX- plosive-Engines, of which the following is a.specification, reference being had therein to the accompanying drawings.

rllhis invention relates to internal eombusy tion motors of thetwo-cycle type and more especially to an arrangement thereof whichprovides a compression chamber for each cylinder and does not use thecrank ease for that purpose.

The invention consists in the matters hereinafter set forth vand moreparticularly pointed out in the appended claims.

- In the drawings, Figure 1 is a view in side elevation of a` motorembodying features ofthe invention showing a cylinder and adjacent partsin longitudinal section, with a pis ton approaching the ignitionposition; Fig.

2 is a view in section at right angles to Fig. 1 with a piston at ornear the outer limit of' its stroke; and i@ ig. 3 is a view partially inplan and partially in cross section of the motor. y

Referring to the drawings, a suitable hase 1 in which a main crankshaft- 2 is journaled in bearings 3, supports cylinders 4 closed at theouter end. Intake ports 5 near the upper end of each cylinder areconnected by an annular assaOe (i with inlets 7 at the u) er ends of.the cylinders, which are controlled by inwardly opening valves, eitherautomatic as herein indicated, or positive in action, and of anypreferred type. Exhaust ports 8, preferably annular, are found near thelower ends of the cylinder.

A trunk piston 9 in the form of a hollow cylinder closed near its upperend, is reciprocable in each cylinder and is internally bored ormachined for sliding engagement Speceaton of 'Letters Patent.

Application led July 28, 1909.

iatentedlilar. "2, 191i. Serial No. 510,052.

shaft. 2. Packing rings 13 near the upper end of the shell make a closedjoint for the cylinder of the iiston. Ports le inthe piston wall nearitshead, on either side of whichare packing rings 15, are adapted toregister near the limit of the out-stroke of the piston with the intakeports 5 of the cylinder and when the piston approaches the point ofgreatest compression, uncover an opening 16 in the cylinder wall inwhich a spark plug 2() 0i' other ignition means is secured. Exhaustopenings 17 are likewise formed in the pistonwall near vthe inner end of`the pist-on in such' position that they register with the exhaust ports8 of the cyl* inder at the same time the intake ports 14 of the pistonare alined with the cylinder ports 5. A removable plate 18 on the sideof the casing permits the insertion and withdrawal of the wrist pin andits bushings 19.

ln operation the outstioke of the piston commences at the instant ofexplosion due to the uncovering of the spark or ignition terminal by theintake ports of the piston and consequent expansion of the chargeAcompressed between the piston head and the' end of the stationaryshell. During the outstroke of the pistoii','the charge thathas enteredthe outer end of the cylinder is partially compressed so that when theinlet ports of the piston register with the intake ports of thecylinder, the partially coinpressed charge rushes' into the piston .andforces out ahead of it the exhausted or ignited charge which is free toescape through the exhaust ports of the piston then in regis ter withthe exhaust ports of the cylinder.

As the piston returns it draws a .fresh charge throughthe inlet valvesand intake ports of the cylinder and conip1esses"'the other chargebetween its head and the head of the stationary shell, which 'is firedwhen the intake ports uncover the ignition terminal. By this arrangementthe crank case may be open, and the crank shaft bearings and connectingrod are not subjected to high temperatures4 as in the base compressiontypo. Furthermore as each cylinder has its own compression chamber anydesired number of cylinders may be coupled on the saine shaft.

Obviously, changes in details of construction may be made withoutdeparting from es A' the spirit of the invention, and I do not limitmyself to any particular form or arrangement of parts.

IlVhat I Claim as my invention is l. In a two-cycle internal Combustionmotor, a Cylinder closed at its outer end and provided with an annularinlet passage near its head in communication With the interior of thecylinder through a plurality of intakev ports, andywth an annular'exhaust passage near its inner end in communication with the interior ofthe cylinder through -a plurality of exhaust ports, a cylindrical shellsecured with its closed upper end extending f Coneentrieally into theCylinder close to the exhaust ports, a trunk piston reeiprocahle in thecylinder and on the shell, provided with intake and exhaust ports.through its Wall adapted vto simultaneously register respeetively Withthe cylinder intake and exhaust ports When the piston is at the outerlimit of its throw, an ignition terminal in the cylinder Wall adapted tobe uncovered by an intake port of thepiston when the latter is near theinner limit of its throw7 and a crank shaft operatively connected to thepiston.

2. In a two-Cycle internal combustion motor, a cylinder closed at itsouter end and provided with anl annular inlet passage near its head in'communication with the interior of the cylinder through a plurality ofintake ports, and with an annular exhaust passage near itsinner end inCommunication with the interior of the cylinder througha plurality or,exhaust ports, a cylindrical shell secured with its closed upper endextending coneentrically into the cylinder close to the exhaust ports, atrunk'piston reeiproeable in the cylinder and on the shell, providedwith intake and exhaust ports through its Wall adapted to simultaneouslyregister respeetively with the cylinder intake and eX- i ha ports-Whenthe piston is at the outer limit of its throw, an ignition terminal inthe cylinder Wall adapted to he uncovered by-an intake port of thepiston when the latter is near the limit of its throw, a Wrist pindiametrieally disposed in the piston

